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(No Model.) 2 Sheets-Sheet 1. L. P. LANGLOIS.

- GOVERNOR FOR ENGINES.

Patented Apr. 12, 1887.

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L. P. LANGLOIS.

GOVERNOR FOR ENGINES.

(No Model.)

No. 361,067. Patentd Apr. 12, 1887'.

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UNITED STATES;

PATENT OFFICE.

LOUIS P. :cAnenors, or ROCHESTER, NEW YORK.

GOVERNOR FOR ENGINES.

QPECIPICATIQN forming part of Letters Patent No. 361,067, dated April12, 1887.

Application filed December 29, 1886. Serial No. 222,880. (No model.)

1'0 all whom, it may concern: I

Be it known that 1, Louis P. LANGLOIS, of Rochester, in the county ofMonroe and State of New York, have invented a new and useful Improvementin Governors for Engines, which improvement is fully set forth in thefollowing specification,and shown in the accompanying drawings.

My invention relates more particularly to that class of governors forsteam-engines known as pendulum governors; and the object of theinvention is to provide a means by which the valve of the governor ismade to move through a greater longitudinal distance within the globethan the actuating-points of the balllevers move when the governor isoperating for the purpose of more quickly controlling the flow of steamto the cylinder, thus making the valve more sensitive to changes in therate of speed of the engine. The improvement is hereinafter fullydescribed, and more particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a side elevation of a governorand valve, showing my improvement attached in place. The globe is inpart brokenaway and centrally longitudinally sectioned, as on the dottedline a: in Fig.

2 and viewed asiudicated by the arrow pointed thereon, and thegovernor-head in part broken away to show more clearly theactuatingpoint of one of the ball-levers; Fig. '2, a transverse sectionof the arch and valve-rod, taken as upon the dotted'line y in Fig. 1 andviewed as indicated by the arrow pointed thereon; Fig. 3, a view of thedevice seen as indicated by arrow 2 in Fig. 1, the upper part of thearch being vertically sectioned, as on the dotted line 00 and inpart-broken away, the globe being centrally longitudinally sectioned, ason the dotted line y in Fig. 2, parts being shown in different positionsby full and dotted lines,

the head and parts immediately connected therewith being shown, as amatter of conven-' ience, in the position in which they are seen 5obeing-vertically sectioned, as on the dotted line a in Fig. 1, thefigure being drawn to more clearly show the union or part thatimmediately operates the accelerating-lever; and

Fig. 5, a view of said union detached, the same being horizontallysectioned, as upon the dotted line 00 in Fig. 4, and seen as indicatedby the arrow pointed thereon, the figure being drawn to show moreclearlythe manner of connecting the valve-rod to the accelerating-lever.

Referring to the parts, Arepresents the globe of asteam-governor valve;B, the valve proper; O, the arch; D, the ball-levers with ballsattached; E, the head F, the sleeve; G, the driving-pulley; H, thedriving-shaft, and I mitergears for the shaft and head, all, save thearch, being of common construction.

- b is the valve-rod,.secured to the valve and caused to pass through anordinary stuffingbox, (Z, at the foot of the arch.

a is the union-rod, occupying the axis of the head, within which itmoves at its lower end, being secured to a union or head, 9, within thearch. At its upper end this rod is provided with a notched spool, f,forming a rest to receive the points of the ball-levers and rigidcollars e e, as shown, these parts being common. By means of thisconstruction the union is moved vertically by the action of theballlevers as the balls rise and fall.

The arch is formed with a horizontal crossbar, h, provided with aslotted horizontallyextended part, To. To this part is secured ahorizontally-adjustable stud, Z, held in positions of adjustment uponthe part by athumbscrew, 0, beneath a threaded portion, 1, of the stud,passing down through the slot to receive the thumb-screw.

The union or head gis formed with parallel union g. The sleeve 19 isfitted to slide verti- 5 cally in the cross-bar h of the arch as theunion is moved upward or down by the ball-levers, as stated. The upperend of the valve-rod is bifurcated to receive the end of the lever 5,the latter resting between the branches and held upon a cross-pin, u,the end of the lever being slotted to allow it to move freely on saidpin. The lever 'i, as here arranged, acts as a lever of the third order,and it will be understood that, for instance, if the distance betweenthe pin a, at which the load is attached to the lever, and the fulcralpoint z; is twice that between said point 12 and the pin a, where thepower is applied, the valve will move through twice the verticaldistance that the rod a moves from any action of the ball-levers. Byadjusting the stud Z along the part or rest It toward or from said pina, the relative simultaneous motions of said valve and rod may beregulated at pleasure.

The lever i acts as an accelerating lever or actuator for the valve, andthe studlis formed with a loop, a, at its upper end, in which to receivethe end of thelever,which loop is pivoted to the stud to swing toward orfrom the pin n, to accommodate the bearing of the lever upon the stud inits vertical movements.

1) is a guide for the union 9, secured rigidly to the cross-bar h, andformed to enter near its upper end a notch in said union, which guideserves to hold the union and parts attached more perfectly in place.

By moving the stud Z toward or from the pivot-pin n, the relative motionof the valve is not only varied, but the revolutions of the engine perminute or hour are also decreased or increased in number, said stud Z onthis account being styled a speeder. In the construction shown thegreatest amount of steam will pass the valve when the latter is raised,this being its position when the balls are down. Now, it will beunderstood that the nearer the stud or speeder is to the bearing of thelever upon the union the farther the valve will be thrown downward byany given motion of the ball-levers. This results from the fact that thenearer the speeder is to said bearing the greater will be the travel ofthe valve, and as the latter starts from the same upper position eachtime it must move lower when moving farther. It thus reduces theaggregate or average opening for the flow of steam during any givenhour. If the stud or speeder be moved farther away from the pivot n, themotion of the valve will be less, and it will work higher, on anaverage, in the globe and expose a greater aggregate opening for thedownflow of steamthat is to say, the engine will run faster under thesame average load and head of steam when the speeder is set at a pointfarther from the pivot n than it will if placed nearer said pivot. Theupper surface of the rest It is formed with transverse graduation-marksc, to be used as a guide in the matter of adj usting the speeder l.

Speeders for engines have before been used in connection with governors;but they have usually worked with much friction, and have been otherwiseobjectionable.

What I claim as my invention is- 1. A valve of asteam-governor and rodconnected therewith, in combination with balllevers, a union-rodactuated by said ball-levers, the axes of said union-rod and valve-rodbeing in a straight line, an actuating-lever for said valve-rod operatedby said union-rod, said lever resting with its operating end in the lineof the axes of said rods, substantially as shown and described.

2. The arch of a governor-valve formed with an internal cross-bar, h,and an arm, 70, extending out from said cross-bar at right angles withthe plane of said arch, in combination with a valve, :1- rod connectedwith said valve piercing said cross-bar and provided with a pin, a, atits upper end, an actuating-lever acting upon said pin, a rest for saidlever secured to said arm, and a vertically-moving head to operate saidlever, substantially as shown and described.

3. The combination, in a steam-governor,of opposing ball-levers, aunion-rod operated by said levers, a union or head secured to said rodwithin the arch, a lever pivoted to said head, a valve, a rod connectingsaid valve and I lever, an adjustable fulcrum for said lever, and agraduated scale for said rest, substantially as and for the purposespecified.

4.. The combination, in a steam-governor, of opposing ball-levers, aunion-rod operated by said levers, a union or head secured to said rod,a lever pivoted to said head, a valve, a

valve-rod connecting said valve and lever,

LOUIS P. LANGLOIS.

\Vitnesses:

E. B. WHITMORE, M. L. MoDERMo'r'r.

